Home / 12,987,077,256.90-19,480,615,885.35-11,127,458,909.70

Finding the Fourth Proportional to 12,987,077,256.90, 19,480,615,885.35 and 11,127,458,909.70

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Solution

The fourth proportional to 12,987,077,256.90, 19,480,615,885.35 and 11,127,458,909.70 is: 16,691,188,364.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,987,077,256.90 : 19,480,615,885.35 = 11,127,458,909.70 : x
  2. Step 2: Convert to fraction form
    12,987,077,256.90/19,480,615,885.35 = 11,127,458,909.70/x
  3. Step 3: Cross multiply
    12,987,077,256.90x = 19,480,615,885.35 × 11,127,458,909.70
  4. Step 4: Simplify right side
    12,987,077,256.90x = 216,769,752,799,881,199,616
  5. Step 5: Solve for x
    x = 216,769,752,799,881,199,616/12,987,077,256.90
  6. Step 6: Final answer
    x = 16,691,188,364.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.